The HEGRA Cherenkov telescope group recently reported an
extended unidentified TeV source in the Cyg OB2 region. This
is the only unidentified TeV source to date. We obtained a 5
ksec Director's Discretionary Time (DDT) CHANDRA observation
of the region of this source. In addition, we secured a
near-simultaneous VLA A-configuration observation sensitive
to point-like sources. We will present the results of our
CHANDRA and VLA follow-up observations of this source.
Preliminary analysis indicates that the combined shock of
the >2000 O & B stars in Cyg OB2 may be accelerating
nuclei to TeV energies, as in the model proposed by Andrei
Bykov, SSRv, 99, 317 (2001).

The author(s) of this abstract have provided an email address
for comments about the abstract:
ybutt@cfa.harvard.edu